Ulcerative colitis

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Ulcerative colitis makes swelling, inflammation, and sores in the lining of the large intestine (colon) and causes diarrhea, belly pain, and bleeding from the rectum. It's a lifelong condition, but in most people the symptoms come and go.

Medicines can stop or reduce symptoms and prevent flare-ups. If the disease is severe, you may need surgery to remove the colon.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.